摘要
用真空高频磁悬浮炉制备了Gd3+xAl2-x(x=0,0.1,0.2,0.3)合金、Gd3-XZnxAl2(x=0、0.1、0.3、0.6)合金和Gd3-xMnxAl2(x=0、0.1、0.2、0.3、0.6)合金。用直接测量法测量了在1.5 T磁场下这3组合金的磁热效应。结果表明,在1.5 T磁场下,Gd3+xAl2-x合金中X=0.1时,其最大绝热温度变化ΔTad最高,为2.1 K;Gd3-xMnxAl2合金中Gd2.7Mn0.3Al2的居里温度Tc最高,达到290 K。
Gd3＋xAl2-x（x=0、 0.1、0.2、0.3）,Gd3-xZnxAl2（x=0、0.1、0.3、0.6）and Gd3-xMnxAl2（x=0、0.1、0.2、0.3、0.6）alloys were prepared in a high-frequency floating furnace.The magnetocaloric effects in three types were measured directly at the magnetic field of 1.5 Tesla.The results indicated that the maximum adiabatic temperature change of 2.0 K is produced by a magnetic field change of 1.5 Tesla when the content for Gd is 0.1 in the Gd3Al2.The maximum Cure temperatures is 287 K in Gd2.7Mn0.3Al2 alloy.
出处
《金属功能材料》
CAS
2010年第2期34-37,共4页
Metallic Functional Materials
关键词
Gd3Al2系合金
磁热效应
直接测量
绝对温变
Gd3Al2 alloies
direct measurements
magnetocaloric effect
adiabatic temperature change
